English: Polska (Poland) Maps showing all or most of the territory (geographic area) of modern-day Poland - as the lands were in the 12th century (1101-1200 CE)
See Wikimedia Commons Atlas of Poland for a general overview of the territory including its evolution in European history.
Additional maps related to the history of Poland (including larger entities comprising or controlling the territory, and smaller entities within the territory) can be found at Maps of the history of Poland.